The long-awaited paperback edition of this, the longest running >Sunday Times< hardback bestseller ever. Since its publication in 1988, >A Brief History of Time< has shot Stephen Hawking to stardom. He has appeared on >Star Trek< and in British Telecom advertisements and has even been a voiceover on the latest >Pink Floyd< album. In the Spring, Channel 4 will be showing a 3-part series called >Reality on the Rocks< which will explore the ideas in Hawking's book and also includes interviews with the man himself.